After seeing mounds of discarded cellphone and digital camera batteries at the SWEEEP Waste electronics plant, not to mention the billions of Lithium ion mobile phones batteries still in circulation, it isn't hard to see we've got a big problem on the horizon. Li-ion batteries are very unsustainable, whereas the new Silver-Zinc Z-Power batteries might be a solution to the problem. Not only are they made from 95% recyclable primary elements, they also offer around 40% more runtime than Li-ion used today.